12267605290 has 8 divisors (see below), whose sum is σ = 22081689540. Its totient is φ = 4907042112.

The previous prime is 12267605279. The next prime is 12267605299. The reversal of 12267605290 is 9250676221.

It can be written as a sum of positive squares in 2 ways, for example, as 10314230481 + 1953374809 = 101559^2 + 44197^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12267605299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613380255 + ... + 613380274.

Almost surely, 2^12267605290 is an apocalyptic number.

12267605290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12267605290 is a deficient number, since it is larger than the sum of its proper divisors (9814084250).

12267605290 is a wasteful number, since it uses less digits than its factorization.

12267605290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226760536.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 12267605290 in words is "twelve billion, two hundred sixty-seven million, six hundred five thousand, two hundred ninety".